Weird Web Sites - The Weirdest Collection Mathematical Facts          Return to Weird Websites Strange Mathematical Facts 111,111,111 multiplied by 111,111,111 equals 12,345,678,987,654,321   One MicoFortnight = 1.2096 Seconds   The first one-hundred digits of pie are: 3.14159265358979323846264338327950288419716939937510582097 4944592307816406286208998628034825342117067   Happy Birthday? You’re not so unique – in fact you share your birthday with at least other nine million people.    There are 170,000,000,000,000,000,000,000,000 ways to play the ten opening moves in a chess game.   If you counted 24 hours a day, it would over 30,000 years to reach one trillion!   The speed of a typical raindrop is 7 miles per hour.   A jiffy is an actual unit of time for 1/100th of a second!   The maximum G-force that a human being can withstand is approximately plus or minus 9g. At these extremes the force involved makes blood flow to the feet, and a person such as a pilot will experience a grey-out (where she/he is unable to discern colours), or a temporary blackout. If a plane is upside down, increased blood flow to the brain may cause a red-out, where the vision is replaced by a red screen. If you ride on the 'rollercoaster' Oblivion at Alton Towers you will experience 4.5g   It takes 8.5 minutes for light to get from the sun to earth.   142857 is a cyclic number, the numbers of which always appear in the same order but rotated around when multiplied by any number from 1 to 6. 142857 * 2 = 285714 142857 * 3 = 428571 142857 * 4 = 571428 142857 * 5 = 714285 142857 * 6 = 857142 Return to Weird Websites maths mathematical facts information calculations data